89027221 has 2 divisors, whose sum is σ = 89027222. Its totient is φ = 89027220.

The previous prime is 89027219. The next prime is 89027251. The reversal of 89027221 is 12272098.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65124900 + 23902321 = 8070^2 + 4889^2 .

It is a cyclic number.

It is not a de Polignac number, because 89027221 - 2¹ = 89027219 is a prime.

Together with 89027219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89027251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44513610 + 44513611.

It is an arithmetic number, because the mean of its divisors is an integer number (44513611).

Almost surely, 2^89027221 is an apocalyptic number.

It is an amenable number.

89027221 is a deficient number, since it is larger than the sum of its proper divisors (1).

89027221 is an equidigital number, since it uses as much as digits as its factorization.

89027221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 89027221 is about 9435.4237318734. The cubic root of 89027221 is about 446.5200235801.

The spelling of 89027221 in words is "eighty-nine million, twenty-seven thousand, two hundred twenty-one".